Explosive-engine.



G. E BILLIG.

'EXLOSIVE ENGINE.. APPLIGATION FILED APR. s, 1912.

Patented Apr. 7, 1914 G. F. BILLIG.

EXPLOSIVE ENGINE. APPLICATION FILED-APR. e, 1912.

Patented Apm, 1914 www 42%.?

portion of the up stroke of the piston 17y which assists in dispelling an' of the burnt gases which may remain in t e combustion chamber. As the said piston 1-7 travels up it begins to compress the charge vtaken in through the portsl 4 causing it to unseat the valve 23 against the action of the spring 24' and allowing the gas to flow to the chamber 22, the exhaust valve remaining open the incoming fresh charge forces any remaining burnt gases from the combustion chamber 22 through the exhaust valve tothe exhaust manifold 7 and thence to the atmosphere; thereby assuring a full fresh charge at each stroke of the piston/ Thesaid exhaust valve 6 is then closed and the piston 17 continues its upward travel and compression of the charge. The valve 28 will remain open until the lar e rear end of the piston 1.7 passes the relier portr 29 which allows the gas back oi the valve 23 to escape to the rear of the dit? ariial cylinder 3, thus relieving the pressure bach ofsaid valve23 and allowingy the latter to seat. The piston 17 then completes its 'upward stroke and final com pression of the charge in the combustion chamber, occupying the position shown in Fig. 2 ready for another firing. Each time a charge is drawn into one oi the differential cylinders 3 from the crank chamber 1 a similar charge will be drawn from the car` bureter in to the crank chamber l, but is notI compressed therein.

Having thus described my inventionywhat l claim is:

1. An. ,explosive engine comprising a crank-case a crank-shaft mounted in said case, a dill'erential cylinder having communication with the crank-case and having, an exhaust port in its outer end, a differential piston having a chambered, outervend, a passage between the ends of the piston, and ports leadin from the chamber'in the outer end of tie ,piston to saidpassage, -a valve to control communication between the chamber in the piston and the combus- .tion chamber, and means connecting sai( piston with the crank-shaft.

2. An explosive engine comprising a crank-case3 a crank-shaft mounted in said case, a dierential cylinder having com-L muiiication with the crank-ease and provided with an exhaust port in its outer end, a diiierential piston having av char-Jared cuter end, a passage between the ends of the piston?. and'po'rts leading from the chamber in. the end of the pistoni to' said passage, seid chamber provided with a number of radiating ribs and an opening leading to the combustion chamber, a valve to control communication between the piston chamber and the`combustion chamber, and means connecting the piston with the crankshaft.

3. An explosive engine comprising a crank-case, a' crank-shaft mounted in said case, a diierential cylinder provided with an exhaust port in its outer end and a n'umber of annularly disposed ports in its inner end communicating with the crank-chamber,

a differential piston having a chambered outer end' and turned down, or contracted, on its outer surface between the ends thereof to form a passage between the piston and the differential cylinder and a number of annularly disposed orts leadin from the said passage to the c amber in t e end of the piston, a valve to o en and close communication between the c amber in the end ofthe piston and the combustion chamber, .and means connecting said piston with the crankshaft. 4. An explosive engine comprising a crank case a" crank-shaft mounted in said ease, a dierential cylinder provided with an exhaust ort in its outer end and a nume ber of ann arlyl disposed ports in its inner end communicating with the crank chamber-,a differential piston having a chambered outer end, and turned down, or contracted, on its outer surface between the ends thereof to form a passage between the piston andthe diierentialcylinder 'and a number of annularlyV dis osed ports. leading from said passage to e chamber-in the end of the piston, said .phamber being provided with a number of inlgral radiating ribs andr an openin leading to the combustion chamber, a va ve to control communication between the said piston chamber and the combustion chamber, and means connecting the piston with the crank-shaft. i l 5. An explosive engine comprising a crank-case, a crank-shaft mounted `in said crank-case, a diierential cylinder having 'annularly disposed ports in its inner end com municating with the vclank-chamber andan exhaust port in itsfouter end, a diierential piston in said differential cylinder provided with a chamber in its outer end having an opening leadin 'to the combustion chamvber, and a va ve to open and close said of said exhaust port, means operated l iso 6. An explosive engine comprising il crank-case, a crank-shaft mountedjin said case, a differential cylinder provided with an exhaust port in its outer end and a number of annularly disposed ports in its inner end communicatin with the crank-chamber, and a relief port a apted to be opened and closed by the large inner end of the piston, a differential piston having a chambered outerv end,and turned down, or contracted, on its outer l.surface between the ends thereof to Vin said crank-case, a number of differential "cylinders each provided with an exhaust liform a passage between the piston "and the differential cylinder and a number of annularly'disposed ports leading from said passage to the chamber in the end of the piston, saidv chamber being provided with a number of integral radlatin ribs, and an opening leading to the com ustion chamber, a valve to open and close said' opening` in the piston chamber, and means connecting the piston with vthe crank-haft 7. A multiple cylinder engine comprisa crank-case, a crank-shaft mounted in passage between the piston and theA` larly disposed ports leading `from said passage to the chamber in the end of the piston, said chambers being provided with a number of integral radiatinv ribsfand an opening leading to the comtbustion chamber, a valve to open and close said opening inthe piston chambers, and means connecting said pistons with the crank-shaft.

8. A multiple cylinder engine comprisinfr a crank-case, a crank-Shaft mounted in said case, a number of differential cylinders having communication with the crank-chamber and each provided with an exhaust port in its outer end, a valve for each of said exhaust Orts, means operated by the crankshaft fldr opening said exhaust valves, a differential piston Within each of sai'd diil'erential cylinders provided with achamber in its outer end having an opening to the com- Vbustion chamber, and a valve to open and close said opening, said pistons being turned down, or contracted, 0n their outer surfaces between the ends ,thereof to form an annular Vpassage between the piston and the differential cylinder and ports leading from the said piston chamber to the saidv passage, and means' connecting said pistons with the crank-shaft. In testimony whereof I aliximy signature in presence of two'witnesses.-

' 'GEORGE F. DILLIG. Witnesses:

WILMER EMonr, v CHAPIN A. FERGUSON. 

